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CEN
EN ISO 8292-1:2010

EN ISO 8292-1:2010

Current

Current

The latest, up-to-date edition.

Animal and vegetable fats and oils - Determination of solid fat content by pulsed NMR - Part 1: Direct method (ISO 8292-1:2008)

Published date

21-04-2010

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Principle
6 Apparatus
7 Sampling
8 Procedure
9 Expression of results
10 Precision
11 Test report
Annex A (informative) - Results of interlaboratory tests
Annex B (informative) - Theory of the direct method
Annex C (informative) - Additional measurement protocols
Bibliography

ISO 8292-1:2008 specifies a direct method for the determination of solid fat content in animal and vegetable fats and oils (hereafter designated "fats") using low-resolution pulsed nuclear magnetic resonance spectrometry.Two alternative thermal pre-treatments are specified: one for general purpose fats not exhibiting pronounced polymorphism and which stabilize mainly in the β'-polymorph; and one for fats similar to cocoa butter which exhibit pronounced polymorphism and stabilize in the β-polymorph. Additional thermal pre-treatments, which may be more suitable for specific purposes, are given in an informative annex.The direct method is easy to carry out and is reproducible, but is not as accurate as the indirect method due to the approximate method of calculation.

Committee
CEN/TC 307
DevelopmentNote
Supersedes EN ISO 8292. (05/2010)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 5555:2001 Animal and vegetable fats and oils — Sampling
ISO 8292-2:2008 Animal and vegetable fats and oils Determination of solid fat content by pulsed NMR Part 2: Indirect method
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 661:2003 Animal and vegetable fats and oils Preparation of test sample

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